The Number of Risk Periods and Whether Anticoagulant Prophylaxis Was Used, the Number of Risk Period–Related Venous Thromboembolic Events, and the Incidence per Risk Period
| Type of Risk Period . | Total No. . | No. With Prophylaxis . | Risk Period– Relative VTE . | Incidence %/Period . |
|---|---|---|---|---|
| Pregnancy and postpartum | 9 | 7 | 13-150 | 11.1 |
| Trauma | 11 | 4 | 3 | 27.3 |
| Surgery | 11 | 9 | 0 | 0.0 |
| Immobilization | 4 | 1 | 0 | 0.0 |
| Other | 5 | 1 | 0 | 0.0 |
| Total | 40 | 22 | 4 | 10.0 |
| Type of Risk Period . | Total No. . | No. With Prophylaxis . | Risk Period– Relative VTE . | Incidence %/Period . |
|---|---|---|---|---|
| Pregnancy and postpartum | 9 | 7 | 13-150 | 11.1 |
| Trauma | 11 | 4 | 3 | 27.3 |
| Surgery | 11 | 9 | 0 | 0.0 |
| Immobilization | 4 | 1 | 0 | 0.0 |
| Other | 5 | 1 | 0 | 0.0 |
| Total | 40 | 22 | 4 | 10.0 |
Event occurred under anticoagulant prophylaxis.